中文摘要：

He Shuping was born in 1983. He is currently a doctorate candidate in Jiangnan University. He is with the Institute of Automation, Jiangnan University. His research interests include robust control, filtering and fault detection of stochastic system. E-mail： henyhappy@yahoo.com.cn Liu Fei was born in 1965. He received the Ph. D. degree in control science and control engineering from Zhejiang University. He was with the Control System Center, University of Manchester Institute of Science and Technology, Manchester, U. K. He is now with the Institute of Automation, Jiangnan University. His research interests include advanced control theory and application, industrial process monitoring, and system fault detection and diagnosis, etc. E-mail： fliu@jiangnan.edu.cn